Funding for this site is provided by:
42°49'49.9", long 73°55'50.7" referenced to North
American Datum of 1983, Schenectady County, NY, Hydrologic Unit
02020004, on left bank 12 ft downstream from bridge on Freeman's
Bridge Road, 1.2 mi north of Schenectady.
PERIOD OF RECORD.--
Occasional low-flow and/or miscellaneous
discharge measurements, water years 1899-1901, 1920, 1953, 1966-67.
August 2011 to current year.
Water-stage recorder and acoustic velocity meter. Datum
of gage is 200.00 ft above NGVD of 1929 and 199.46 ft above NAVD of
1988. Prior to Oct. 1, 2013, datum of gage was 199.74 ft above NGVD of
1929, not 200.00 ft above NGVD of 1929 as previously published.
Considerable regulation of stage by Lock 8 on the Erie
(Barge) Canal about 3.8 mi upstream and Vischer Ferry Dam hydroelectric
facility about 6.9 mi downstream.
Water Years 2014-17: Records fair except those for estimated daily
discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD.--
Maximum discharge 130,000 ft³/s
Aug. 29, 2011, gage height 26.15 ft, present datum; minimum discharge
not determined; minimum gage height, 8.74 ft, Apr. 27, 2015.
EXTREMES OUTSIDE PERIOD OF RECORD.--
An extreme flood occurred
sometime from 1860-65 with a depth of 12 ft on the Cohoes dam and a
peak discharge estimated to be at least 200,000 ft³/s (from New York
State Museum Bulletin 85).
Peak Flow and Stage Information
River Ice Jam Monitoring